Hourly Weather Forecast - Pittsburgh, Ontario, CA

12 AM
22°F
0%
0mph
WSW
Partly Cloudy
Humidity
85%
Feels like
22°F
Dew Point
19°F
1 AM
21°F
0%
1mph
S
Partly Cloudy
Humidity
87%
Feels like
21°F
Dew Point
18°F
2 AM
21°F
0%
1mph
SSE
Partly Cloudy
Humidity
88%
Feels like
21°F
Dew Point
18°F
3 AM
22°F
0%
3mph
S
Mostly Cloudy
Humidity
90%
Feels like
22°F
Dew Point
20°F
4 AM
24°F
0%
4mph
S
Mostly Cloudy
Humidity
90%
Feels like
18°F
Dew Point
21°F
5 AM
25°F
0%
6mph
S
Mostly Cloudy
Humidity
91%
Feels like
18°F
Dew Point
23°F
6 AM
27°F
0%
6mph
S
Partly Cloudy
Humidity
92%
Feels like
19°F
Dew Point
25°F
7 AM
28°F
0%
8mph
S
Partly Cloudy
Humidity
92%
Feels like
21°F
Dew Point
26°F
7:36 AM
8 AM
30°F
0%
9mph
S
Partly Cloudy
Humidity
89%
Feels like
22°F
Dew Point
27°F
9 AM
32°F
0%
9mph
S
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
28°F
10 AM
34°F
0%
11mph
S
Partly Cloudy
Humidity
81%
Feels like
26°F
Dew Point
29°F
11 AM
36°F
0%
12mph
S
Mostly Sunny
Humidity
76%
Feels like
27°F
Dew Point
29°F
12 PM
38°F
0%
13mph
S
Mostly Sunny
Humidity
71%
Feels like
30°F
Dew Point
29°F
1 PM
39°F
0%
13mph
S
Mostly Sunny
Humidity
68%
Feels like
31°F
Dew Point
29°F
2 PM
40°F
0%
14mph
S
Partly Cloudy
Humidity
67%
Feels like
32°F
Dew Point
30°F
3 PM
40°F
0%
15mph
S
Partly Cloudy
Humidity
68%
Feels like
32°F
Dew Point
31°F
4 PM
40°F
0%
15mph
S
Partly Cloudy
Humidity
70%
Feels like
32°F
Dew Point
31°F
4:27 PM
5 PM
40°F
0%
14mph
S
Partly Cloudy
Humidity
72%
Feels like
32°F
Dew Point
32°F
6 PM
40°F
0%
14mph
S
Mostly Clear
Humidity
74%
Feels like
32°F
Dew Point
32°F
7 PM
39°F
10%
14mph
S
Mostly Clear
Humidity
76%
Feels like
31°F
Dew Point
32°F
8 PM
39°F
10%
14mph
S
Mostly Clear
Humidity
79%
Feels like
31°F
Dew Point
33°F
9 PM
39°F
10%
13mph
S
Mostly Clear
Humidity
82%
Feels like
31°F
Dew Point
34°F
10 PM
40°F
30%
13mph
S
30% Chance Rain Showers
Humidity
85%
Feels like
32°F
Dew Point
35°F
11 PM
40°F
50%
14mph
S
50% Chance Rain Showers
Humidity
88%
Feels like
32°F
Dew Point
37°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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